Karlheinz Rohrwild has found this wonderful picture in the February 1930 issue of the German magazine “UHU”. The caption says
The 7 km long railway between Kabul and Darul-Aman was very over-filled..
I guess the building in the background is the palace at Darulaman. Werner Müller has put on-line some fascinating old photos of Afghanistan and Darulaman taken by his ancestor Wilhem Rieck in the 1920s, which are well worth a browse, even if you can’t read German.
- I’ve got another page with some more pictures of the tramway.